Picker mechanism for looms.



J. P. DUSTIN.

PICKEB. MECHANISM FOR LOOMS. V APPLIUATIM FILED Arnlls, 1909.

1,034,433. Patented Aug. 6, 1912.

A TTORNEY. v

" cates, as a whole, t

JOHN F. DUSTIN, OF FULTON, NEW YORK.

PICKER MECHANISM FOR LOOMS;

Specification of Letters Patent.

Patented Aug. 6,191 2.

Application filed April '15, 1909. Serial No. 490,039.

To all whom it may concern:

Be it known that I, JOHN F. DUSTIN, a

citizen of the United States of America, re-

siding at Fulton, in the county of Oswego and State of New York, have invented new and useful Improvements in Picker Mechanism for Looms, of which the following is a specificatidn.

- This invention relates to improvements in picking devices for looms, the invention relating particularly to improvements in the construction of the sweep stick, and in means of adjustment to regulate the throw of the picker-stick, all as hereinafter fully described and pointed out in the claims, the invention being clearly illustrated in the accompanying drawings, in which,

Figure 1 is 'a side elevation of a construction embodying the invention showing the parts in one position. Fig. 2 is a like view showing the parts in a different position of adjustment. Fig. 3 is a plan view of the sweep-stick, picking-arm, and picker-stick, the .upper end of the latter being broken off, as is also the lower end of the picking-arm. Fig. 4 is an enlarged perspective view of a block of wood, fiber, or the like removably supported in the forward end of the sweepstic t. Fig. 5 is a side elevation of a pickerarm and a part of the sweep-stick showing a modification of the construction illustrated in Figs. 1 and 2. Fig. 6 is a side elevation of a picker-arm and a part of the sweep-stick showing still another modification of the construction shown in Figs. 1 and 2.

Referring now to these drawings, a is the picking-arm; b the picker-stick, and cindie sweep-stick. A portion of a shuttle is indicated by d,'-e indicating conventionally a part of a shuttlebox.

The picker-stick b Fig. 2 is pivotally supported on a bolt f in an arm 9 which is pivotally and adjustably supported, as shown in Fig. 2, on bolt fextending through a slot 71 of the frame of the loom, indicated by is,

a bolt it passes through a slot 0 concentric with the bolt f for purposes of adjustment. A second slot in said arm 9 (also concentric to the bolt f) is provided, and a second bolt may pass therethrough into said frame part. It is thus apparent that by loosening the bolt 7:. the arm 9 may be adjusted relative to the support In to effect, to a greater or less extent, the vertical adjustment of the end of the sweep-stick aso as to shift the point of contact of the sweep stick on the picker stick without affecting the adjustment, vertically of said picker-stick. The ,slot in member is is for the purpose of permitting an adjustment of the picker-stick b and the arm 9 relative to the member 7: in an obvious manner. To the free end of this arm 9 is pivoted the rigid sweep-stick support 9 the upper end of which preferably extends between the two sides of the sweep-stick c and is pivotally connected thereto by means of a bolt 1'. The supporting arm- 9 will maintain a position of parallelism to the picker-stick in all positions.

It is thus apparent, by a comparison of the position of the parts just described, as shown in Figs. 1 and 2, that a wide range of adjustment of the relation of the sweepstick to the picker-stick is provided, and the swing of the picking arm being through a fixed arc, the throw of the shuttle may be thus regulated to a nicety. Still further means of adjustment are provided by makperforated with registering holes '0 wherebythey may be clamped together, the clamping devices consisting of a clip 10 and a bolt m which passes through a hole in the clip to, and one of the holes 2) in the overlapping ends of the sweep-stick parts, the

end of said clip to being provided with a rectangularly disposed end which extends through another hole v, thus when 'the'nut on the bolt as is tightened, the two. parts'of the sweep-stick will be locked together in sucha manner as to provide against all longitudinal strain to which it is subjected, and also against any sagging of the center which might take place if these two parts of the sweep-stick were secured together only by means of the bolt as. At the free end of the part 8 of the sweep-stick is secured, in any suitable way,'a pad of leather or the like at the point of contact with the picker-stick. In the forward end of the part t of'the sweep-stick a suitable pocket is provided to arms 4 of which are bent around the outside of the forward end of said part t of the swccpstick, the other end of the blank being formed to receive the narrow end of the Wedge-shaped block 3. Any other method, however, of making a pocket in the end of the sweep-stick may be employed, it bemg only essential that the rounded end 5 of the block be left so exposed that the similarly rounded end 6 of the picker-arm a may have a free bearing thereagainst. v

'l or the. purpose of supporting the forward end of the sweep-stick it is preferred to construct the picking-arm with a spur 7 extending out under the forward end of the sweep-stick, the upper surface of the spur being made on a suitable curve to permit the sweep-stick to ride easily thereon when the arm is in any position.

The block 3 takes the thrust of the picking-arm when'the latter swings forward to throw the shuttle d and to take the thrust' of this arm when it swings back again, a

second block of wood or other suitable material, (indicated by 8) is located between the sides of the part t of the sweep-stick just back of the curved end 6 of the pickingarm, said block 8 being secured in the sweep-stick in any suitable manner, as for example by means of a pin 9 passing therethrough and through the sides of the sweep- 7 struction for the accurate adjustment of the throw of the picker-stick through a relatively wide range including as it does not only the adjustment of the arm 9 but also the longitudinal adjustment of the sweep-.

stick, and means have also been provided for reducing to a minimum the wear of the parts of the sweep-stick at the point of their connection with the picking-arm, and also for the quick renewal of these last-named parts, it being possible to lift the end of the sweep-stick ofi of the end of the picking-arm and put in a new block 3 in a few moments. VVhatI claim, is: v

1. In a picker mechanism for looms, the combination of apicking stick, a sweep-stick having an opening in one end, a picking arm having a curved projection adapted to "engage the under side of the forward end of the sweep-stick, the upper surface of the projecting portion being curved to permit the sweep-stick to ride freely thereon upon operation of the picking arm, a bearing block in said opening, the upper end of the picking arm extending into said opening adjacent said bearing block and adapted to shift the sweep-stick in opposite directions by engaging one end of said opening and said bearing block upon operation of the picking arm.

2. In a picker-mechanism for looms, the combination with a picker-stick, a picker- 9 arm, a sweep-stick having an opening in one end, a pocket in the opening and having bendable fingers to removably secure the pocket to the sweep-stick and a bearing block in the pocket for engagement by the picker-arm, the picker-arm having a curved projection to support the front end of the sweep-stick and also having another curved projection which engages said bearing-block when the picking-arm shifts the sweep-stick in one direction.

3. In a picker mechanism for looms, the combination of a picking-stick, a sweep-stick having an opening, a pocket disposed in said opening and provided with parts which embrace opposite sides of the opening to secure the pocket in the opening of the sweepstick, a bearing block forthe picking arm disposed in said pocket, and a picking arm having a curved projection which engages the under side of the sweep-stick to permit the latter to ride freely thereon upon operation of the picking arm, the upper end of the picking arm extending into said opening for engagement with the bearing block when the picking arm shifts the sweep stick in one direction.

4. In a picker mechanism for looms in combination the frame work of the machine, a picker stick pivotally secured to the frame, a picking arm, a sweep-stick having connection with the picker stick, an arm secured on the pivot of the picker stick, said arm having a slot concentric with said pivot, a bolt passing through said slot, and a supporting stick secured to said arm and pass ing through the sweep-stick.

5. In a picker mechanism for looms, in, combination, the frame work ofthe machine, a picker stick pivotally secured to the frame, a pickingv arm, a sweep-stick having connection with the picker stick, an arm secured on the pivot of the picker-stick, a

supporting stick secured to said arm at one side of the pivot and connected to the sweepst-ick and an adjusting means on the other side of the pivot whereby the point at which the sweep stick connects with the picker stick can be changed.

6. In a picker mechanism for looms, in combination, the frame Work of the machine, a picker stick pivotally secured to the frame, means to adjust the picker stick in the frame comprising a bolt on which the picker stick is pivoted and a slot in the frame through which the bolt can be moved to various positions carrying the picker' stick therewith, a picking arm, a sweep-stick having connection with the picker stick, an arm secured to said bolt, a supporting stick secured to said arm at one side of the bolt and connec ted to the sweep stick and an adjusting means on the other side of the pivot whereby 2( the point at which the sweep stick connects with the picker stick can be changed.

JOHN ,F. DUSTIN. Witnesses:

CHAS. BROWN, H. F. VAN SANFORD. 

